I have following log entry that I want to parse using the GROK pattern via Logstash.
Log Entry:
1. TID: [-1234] [ESB]
2. TID: [-1234] []
Following is my grok pattern which is also working fine on Log entry 1 :
TID:%{SPACE}\[%{INT:SourceSystemId}\]%{SPACE}\[%{WORD:server_type}\]
But I want the expression that works on both the log entry 1 and 2. It should also cater the empty values and does not fail. I am using this website to test my grok patterns.
Problem:
The problem is that "WORD" pattern does not cater for empty space or no alphabet, and I cannot write custom pattern .
WORD \b\w+\b
I tried to write inline regex to solve this but I am not able to get it working. can somebody please guide me that how to use inline regex for this particular case in GROK patterns.
You could also use the (pattern)? character to mark zero or one occurences:
TID:%{SPACE}\[%{INT:SourceSystemId}\]%{SPACE}\[(%{WORD:server_type})?\]
Credit to magnusbaeck from elastic community. link
You can change WORD to DATA and it will work:
TID:%{SPACE}\[%{INT:SourceSystemId}\]%{SPACE}\[%{DATA:server_type}\]
^
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change this
Related
So I am looking to extract a set of characters from unique reset verification codes that I get in my emails. Meaning, what im trying to extract will be different every time. This is the example:
"You requested one-time code for authentication.
Your code is 7a8c28
Enter the code to verify your login."
I am trying to extract the "7a8c28" (without the quotation marks).
This is the regex expression I have written because I am trying to remove the whitespace after the "is":
[^is_\s*]*$
However, that expression above spits out a single period, and not the 7a8c28.
Am i missing something here? Or is there a better expression to use? Thank you for any assistance.
\sis\s(\w+)\b
captures the code as captured group 1 ($1).
\bis\h*(\S+)$
will capture in group 1 the value you're searching for.
Demo & explanation
I am trying to extract the value of session id from the response header.Is there an alternate way other than using lookbehind in jemeter?
I verified my regex in regexformatter and its working as expected but as jmeter is not supporting lookbehind, the solution is not working for me.
Response header :
Expires: 0
X-Frame-Options: DENY
x-session-id: 1a5e099f-5234-4
X-Application-Context: test:8080
Regex used is:
(?<=x-session-id: ).{0,16}
Can someone help me with it?
As per Regular Expressions chapter of the JMeter User Manual:
Note that (?<=regexp) - lookbehind - is not supported.
So you can just use something like: x-session-id:\s+(.+) and it should work fine:
More information: Using Regular Expressions to Extract Tokens and Session IDs to Variables
The Regular Expression Extractor configuration should be this one:
Regex:
x-session-id: (.*)
Assuming that the last character in the session id will be digits. Then you can use the following. If you think the second group in session id will be digits then replace second \w+ with \d+ and it will serve the purpose. Let me know if you think the other dataset may fail this regex.
Regex:(?:\w+-\w+-\d+)
Seems like you have an understanding about Regex so not mentioning the explanation. Let me know if this does not work for you. I will try to come up with another approach but in that scenario please give more datasets. Good Luck.
I have a ELK cluster to keep my logs below, and i want to extract some fields in the log use logstash grok.
[info ][170703 10:34:38.998686/832]acct ok,deal_time=122ms;ACCESS_PORT=216179383538692472&ACCESS_TYPE=2&ACCOUNT=07592111916&Acct-Status-Type=3;
here is my grok pattern.
%{SYSLOG5424SD}\[%{DATA:[#metadata][timestamp]}\/%{NUMBER}\]%{WORD:type}\ %{WORD:status}\,%{GREEDYDATA}%{NUMBER:dealtime}ms\;%{GREEDYDATA}(?<acct>(?<=ACCOUNT=).*)
i want to extract some field's value and give it to the event variable.
eg. acct = 07592111916
i use (?(?<=ACCOUNT=).*&$) to extract the value, but not works, where is my problem?
i debug the code in this site.
http://grokdebug.herokuapp.com
I think you need to extract this way:
(?<acct>(?<=ACCOUNT=)[^&]+)
I have a regex to track signups to my site. There could be multiple adresses for a goal.
Here is my regex:
(\/membership\/signed-up\/|\/membership\/campagin\/(?!.*(not-this-campaign)).[-\w]+\/signed-up\/)
I want to match this adresses:
/membership/signed-up/
/membership/campagin/random-campaign/signed-up/
/membership/campagin/other-random-campaign/signed-up/
But I want to exclude this address:
/membership/campagin/not-this-campaign/signed-up/
It works, but it google also matches this address:
/membership/signed-up/step-2/
When I test in http://regexr.com it matches only on the strings I want, but why is google analytics matching more?
Try this :
(\/MEMBERSHIP\/SIGNED\-UP\/(?!.*(STEP\-2))|\/MEMBERSHIP\/CAMPAGIN\/(?!.*(NOT\-THIS\-CAMPAIGN)).[-\w]+\/SIGNED\-UP\/)
You regex its almost correct, but, you need to ensure it dont match with STEP 2
I'm working with Google Analytics API add-on for Google Spreadsheets to pull in data.
I know basic regex and it turns out that negative lookbacks / not operators (I'm assuming they're the same?) aren't allowed in Google Analytics, therefore I'm having difficulty with this filter.
I want to filter out all URL page paths that have a query string in them. Here's a sample list:
/product/9779/this-is-a-product
/product/27193/this-is-a-product-with-a-query-string?productId=50334&ps=True
/product/281727/this-is-another-product-with-a-really-long-title
/product/979
/product/979/product-12-pump-septic
/product/9790/the-1983-ford-sedan
/product/9791/remington-870-3-express-410-pump-shotgun
/category/2738/this-is-a-category
I want my output to be:
/product/9779/this-is-a-product
/product/281727/this-is-another-product-with-a-really-long-title
/product/979/product-12-pump-septic
/product/9790/the-1983-ford-sedan
/product/9791/remington-870-3-express-410-pump-shotgun
This is the start of my Regex...
ga:pagePath=~^/product/(.*)/
...which ignores the fourth line but I have no idea what to put after the second backslash.
I've tried a few things here (like this one Regular expression to stop at first match) and have been testing my code here (http://www.analyticsmarket.com/freetools/regex-tester).
Any insight would be greatly appreciated!
You can use the following regular expression to match the desired output.
^/product/.*/[\w-]+$
Live Demo
Try this also. It will strictly capture. what you need.
^\/product\/((?:(?!\/|[a-z]).)*)\/[\w-]+$
SEE DEMO : http://regex101.com/r/gS3lF8/2
^/product/\d+/[a-zA-Z0-9-]+$
You can try this.See demo.
http://regex101.com/r/oE6jJ1/16